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[Bug 1087631] Re: SATA drive reduced to UDMA/33


Hi Christopher

It appears that the BIOS you are pointing me to for v. 1.04 is 3002 for
a EITX-3002 board. My board is the M910 (
http://www.viaembedded.com/en/products/boards/1810/1/EPIA-M910.html ),
which still shows latest bios as 1.02.  What makes you think that the
1.04 BIOS is compatible with the M910 board?

sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date states:

I look forward to hearing from you.

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  SATA drive reduced to UDMA/33

Status in “linux” package in Ubuntu:

Bug description:
  I have an EPIA M910 (VX900 chipset) board with the latest BIOS (BIOS
  1.01 2012/02/17 I2100101.zip). I have a Seagate SATA ST32000542AS
  drive installed and a SATA PIONEER BDR-207D Blu-Ray burner installed
  for backups. I have no IDE devices (the IDE slots on the mobo are
  empty). In the latest BIOS, the options to select SATA or IDE modes
  have been removed. When booting into Linux, these are clearly set by
  the BIOS to IDE mode and this cannot be changed. The kernel driver
  also unfortunately identifies the fictitious IDE cables as 40-wire,
  which reduces the speed from UDMA/133 to UDMA/33. This  seriously
  negatively impacts on the usability of this machine. A selection of
  the relevant portion of the dmesg output is appended to illustrate the
  problem. It looks like this might be an issue in the pata_via driver.
  The fictitious IDE "cable" should rather be detected as 80-wire to
  enable the UDMA/133 mode. Ideally, it would be useful to be able to
  select SATA mode through a kernel option and not have to rely on that
  option being set in the BIOS, but I am unsure of whether that would be
  possible. I have confirmed this issue with Ubuntu 12.10 as well.

  WORKAROUND: libata.force=80c

  ---- dmesg output begins -----
  [ 0.250142] libata version 3.00 loaded.
  [ 1.107966] pata_acpi 0000:00:0f.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21
  [ 1.108026] pata_acpi 0000:00:0f.0: PCI INT A disabled
  [ 1.271856] pata_via 0000:00:0f.0: version 0.3.4
  [ 1.271878] pata_via 0000:00:0f.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21
  [ 1.278086] scsi0 : pata_via
  [ 1.278234] scsi1 : pata_via
  [ 1.279969] ata1: PATA max UDMA/133 cmd 0xbc00 ctl 0xb880 bmdma 0xb400 irq 21
  [ 1.279973] ata2: DUMMY
  [ 1.452365] ata1.00: ATA-8: ST32000542AS, CC35, max UDMA/133
  [ 1.452372] ata1.00: 3907029168 sectors, multi 16: LBA48 NCQ (depth 0/32)
  [ 1.452387] ata1.01: ATAPI: PIONEER BD-RW BDR-207D, 1.20, max UDMA/100
  [ 1.452395] ata1.00: limited to UDMA/33 due to 40-wire cable
  [ 1.452400] ata1.01: limited to UDMA/33 due to 40-wire cable
  [ 1.468343] ata1.00: configured for UDMA/33
  [ 1.484154] ata1.01: configured for UDMA/33
  ---- dmesg output ends -----

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-34-generic 3.2.0-34.53
  ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33
  Uname: Linux 3.2.0-34-generic i686
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.0.1-0ubuntu15
  Architecture: i386
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Card0.Amixer.info: Error: [Errno 2] No such file or directory
  Card0.Amixer.values: Error: [Errno 2] No such file or directory
  Date: Fri Dec  7 20:06:57 2012
  HibernationDevice: RESUME=/dev/dm-2
  InstallationMedia: Ubuntu-Server 10.10 "Maverick Meerkat" - Release i386 (20101007)
  IwConfig: Error: [Errno 2] No such file or directory
  MachineType: VIA technology Inc. VX900
  MarkForUpload: True

  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-34-generic root=/dev/mapper/home1vg-home1Main ro quiet
   linux-restricted-modules-3.2.0-34-generic N/A
   linux-backports-modules-3.2.0-34-generic  N/A
   linux-firmware                            1.79.1
  RfKill: Error: [Errno 2] No such file or directory
  SourcePackage: linux
  UpgradeStatus: Upgraded to precise on 2012-10-23 (45 days ago)
  dmi.bios.date: 02/14/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: I2100101
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: EITX-3002
  dmi.board.vendor: VIA technology Inc.
  dmi.board.version: To be filled by O.E.M.
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrI2100101:bd02/14/2012:svnVIAtechnologyInc.:pnVX900:pvr1.0:rvnVIAtechnologyInc.:rnEITX-3002:rvrTobefilledbyO.E.M.:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: VX900
  dmi.product.version: 1.0
  dmi.sys.vendor: VIA technology Inc.

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